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Curtis 1207B Manual
4
4 — MAINTENANCE
MAINTENANCE
There are no user-serviceable parts inside the Curtis 1207B controller. No at-
tempt should be made to open the controller. Opening the controller may
damage it and will void the warranty.
However, it is recommended that the controller exterior be cleaned peri
-
odically, and—if a handheld programmer is available—this periodic cleaning
provides a good opportunity to check the controller’s fault history file. It is
also recommended that the controller’s fault detection circuitry be checked
whenever the vehicle is serviced.
The 1207B controller is inherently a high power device. When
working around any battery powered vehicle, proper safety
precautions should be taken. These include, but are not lim
-
ited to: proper training, wearing eye protection, avoiding loose
clothing and jewelry, and using insulated wrenches.
CLEANING
Although the 1207B controller requires virtually no maintenance if properly
installed, the following minor maintenance is recommended in certain ap
-
plications.
1. Remove power by disconnecting the battery.
2. Discharge the capacitors in the controller by connecting a load (such as
a contactor coil or a horn) across the controller’s B+ and B- terminals.
3. Remove and dirt or corrosion from the bus bar area. The controller
should be wiped clean with a moist rag. Allow it to dry before recon
-
necting the battery.
4. Make sure the connections to the bus bars are tight. Use two well insu
-
lated wrenches for this task in order to avoid stressing the bus bars.
FAULT HISTORY
The handheld programmer can be used to access the controller’s fault history
file. Connect the programmer, and select the Fault History menu (Fault »
Fault History). The programmer will read out all the faults the controller has
experienced since the last time the fault history file was cleared. The faults may
be intermittent faults, faults caused by loose wires, or faults caused by operator
errors. Faults such as contactor faults may be the result of loose wires; contactor
wiring should be carefully checked out. Faults such as HPD or overtemperature
may be caused by operator habits or by overloading.
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